一同学2019-05-14 10:45:12
请问第82题为什么选c? payoff和profit有什么区别?
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Adam2019-05-14 14:19:10
同学你好,payoff只考虑收益。profit是要考虑成本的(这里指的是初始投资,期权费)
Payoff of the long put = MAX[0,K - S(t)] and payoff of short call = - MAX[0, S(t) - K] = MIN[K - S(t)],
such that the combination payoff = K - S(t).
注意: Profit = the payoff-initial investment [net premium] Sometime also profit = payoff - FV(initial investment)
看下图
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